Question
Which of the following is an example of heat transfer
through convection?Solution
Convection occurs through the bulk movement of molecules in fluids, such as air and water. Land and sea breezes result from this process. Other examples relate to different heat transfer mechanisms: conduction (frying vegetables), sublimation (dry ice), and radiation (X-rays).
Each of the articles was marked 25% above its cost price and while selling 12% discount was given on it. The cost price of article M is Rs. 500 more tha...
A bought an article at 30% less of the marked price and sold it at 12% more than the marked price. Find the profit earned by him.
Profit percentage received on a product when sold for Rs. 550 is equal to the percentage loss incurred when the same product is sold for Rs. 250. Find t...
A shopkeeper purchases rice of two varieties βAβ and βBβ at Rs. 24 per kg and Rs. 18 per kg respectively. He mixes 1 kg of variety βAβ rice ...
A shopkeeper fixes the marked price of an item 35% above its cost price. The percentage of discount allowed to gain 8% is
...A second-hand item was bought at Rs. 650 and had repairs costing Rs. 550. The seller increased the price by 35% but finally sold it at a 30% loss. Calcu...
A shopkeeper marked an article βAβ 60% above the cost price and sold it for Rs. 1008 after giving a certain discount while he sold an article βBοΏ½...
An item is marked at 25% above its cost price. A discount is given on the marked price, and the profit earned from selling the item is three-fifths of t...
- An article was purchased for Rs. (20n + 400). It was labeled 30% higher than its cost and sold after applying a discount of Rs. (2n + 50). If the seller ma...
On a certain item profit is 150%. If the cost price increases by 25% what will be the new profit margin (in %)?